baber/WOPTO huggingface dataset:
Patent CA-1094635-A (CA)
Inventor: KOTLAREWSKY PAUL
IPC: H02M3/337
Filed: 1978-01-17
Granted: 1981-01-27
Abstract: MASTER-SLAVE VOLTAGE REGULATOR EMPLOYING PULSE WIDTH MODULATION          Abstract of the Disclosure A pulse width modulation (PWM) converter circuit for transforming a first DC voltage into a second voltage (AC or DC), wherein the magnitude of the second voltage is regulated by the converter circuit.  The converter circuit comprises a clock circuit, a master pulse width modulator (PWM) circuit and n slave pulse width modulator (PWM) circuits. The clock circuit provides a symmetrical train of rectangular pulses on each of n+l conductors, wherein only one pulse occurs on any one of the conductors at one time.  The master PWM means is responsive both to the train of pulses on one of the n+l conductors and to a feedback signal indicative of the magnitude of the second voltage; the master PWM means controls the flow of current, due to the first DC voltage, through a portion of a transformer primary winding.  Each of the slave PWM circuits is responsive both to the train of pulses on n of the n+l conductors, in a one-to-one relationship, and to an output control signal based both upon the feedback signal, indicative of the magnitude of the second voltage, and upon the difference in the magnitude of the charge passed by the master PWM circuit and the charge passed by the respective slave PWM circuits, each of the slave PWM circuits controls the flow of current, due to the first DC voltage, through a portion of the transformer primary winding.   - i -
Patent CA-1089764-A (CA)
Title: Bridging group to attach immunological substance to a  latex
Inventor: RECKEL RUDOLPH P
IPC: G01N33/545
Filed: 1978-02-02
Granted: 1980-11-18
Abstract: ABSTRACT OF THE DISCLOSURE    A two-step process for achieving a covalent bond between latex polymers and immunological substances, the first of which involves reacting latex particles having a reactive carboxyl group with a diamine in the presence of an appropriate carbodiimide as the condensing agent. The resulting product, which can be designated as the modified latex, is an amide terminating in primary or secondary amino groups. This product is then reacted with the appropriate immunological reagent such as an antigen or antibody modified if necessary to contain amino groups, in the presence of a bifunctional aldehyde to result in the condensation of the amino groups of the immunological reagent to the amino groups of the modified latex via an intermediate aldehyde bridging moiety.
Patent CA-1044576-A (CA)
Inventor: JOHNSTON JOHN S
IPC: B27M1/00
Filed: 1978-04-25
Granted: 1978-12-19
Abstract: TITLE                A METHOD OF KERFLESS CUTTING WOOD                             INVENTORS                       John S. Johnston Andr? St-Laurent ABSTRACT OF THE DISCLOSURE         To reduce splitting ahead of the knife blade and the deflection of the cut from a straight line during kerf-less cutting, the wood is compressed only on either side of the knife blade and the cutting edge of the knife blade is inclined rearwardly to prevent the wood fibres from leaving and blunting the blade.  Preferably the knife blade cutting edge inclines rearwardly from both ends towards the centre because this imparts rigidity to the knife blade.  The wood may be compressed by passing between side pads on each side of the knife blade or by passing between rotatably mounted fluid pressurized tires.
Patent CA-1134990-A (CA)
Inventor: SAKASHITA TAKESHI
IPC: C08L77/00
Filed: 1978-05-15
Granted: 1982-11-02
Abstract: ABSTRACT OF THE DISCLOSURE           An epoxy resin composition comprising (A) a polymer having a hydroxyl content of 0.3 to 7 millimoles/g, said polymer being prepared by polyme-rizing a polymerizable material selected from the group consisting of (a) cationically polymerizable hydrocarbon-containing fractions having a boiling point in the range of from 140 to 280°C obtained by distillation of a crack-ing or reforming product of a petroleum, (b) a cationically polymerizable aromatic unsaturated hydrocarbon, and (c) a mixture of (a) and (b), in the presence of a cationic poly-merization catalyst andmodifying the resulting polymer with a phenol or naphthol;      (B) a polyepoxy compound; and (C) a curing agent. The epoxy resin composition thus obtained is especially useful in the field of paints.
Patent CA-1097539-A (CA)
Inventor: ANDERSON JERREL C
IPC: G03G5/082
Filed: 1978-05-25
Granted: 1981-03-17
Abstract: ABSTRACT            A film laminate having low surface resistivity, high abrasion resistance, and high light transmission includes a polymeric substrate layer and a transparent metal layer bonded to the substrate by a polymeric coupler. A polymeric coating is applied over the metal layer.
Patent CA-1096552-A (CA)
Inventor: STEWART JOHN M
IPC: E03D9/052
Filed: 1978-06-27
Granted: 1981-03-03
Abstract: C A N A D A     ABSTRACT OF THE DISCLOSURE             The disclosure relates to toilets of the kind which incorporate a waste-receiving tank or chamber in which decomposition of waste material takes place.  The toilet includes an air-manifold assembly having a plur-ality of air outlet tubes positioned in a lower region of the chamber in which waste material collects.  The tubes have air openings which are directed downwardly away from the waste material.  The air-manifold assembly receives heated air which flows through the outlet opening in the tubes for removing moisture from the waste material by evaporation.  Perforate baffle means is provided in the waste receiving chamber and forms a basket-like structure supported on the air outlet of the air-manifold assembly.          The baffle means confines the waste material and defines at least one air space laterally of the waste material into which heated air can pass for improving efficiency of moisture evaporation.
Patent CA-1083105-A (CA)
Inventor: BRODY AARON L
IPC: B65B55/10
Filed: 1978-07-25
Granted: 1980-08-05
Abstract: ABSTRACT This invention relates to a method and apparatus for the aseptic packaging of high acid food products.  More specifically, the present invention is directed to a method whereby preformed barrier plastic containers are immersed in an aqueous sterilizing bath at a temperature ranging from 212°F to 140°F for a time inter-val ranging from one to sixty seconds, following which, after drai-ning the sterilizing liquid therefrom, the containers are filled with presterilized high acid food product under essentially inert atmosphere conditions and thereafter closed in an inert atmosphere by sealing a sterile closure element thereto.  Novel apparatus for automatically carrying out the method of the invention is also provided.
Patent CA-1118133-A (CA)
Inventor: HEATON MICHAEL J
IPC: C08J3/22
Filed: 1978-09-15
Granted: 1982-02-09
Abstract: ABSTRACT OF THE DISCLOSURE             A process for preparing a flowable, nonaqueous, solvent-free highly-pigmented, low viscosity, thermoplastic, hot-melt coating compound, which comprises the steps of: (a) mixing in an initial stage from about 70% to about 95%, by weight, of pigment with from about 5% to about 30%, by weight, of low viscosity thermo-plastic binder material for a period of time sufficient to obtain a homogeneous concentrate; and (b) mixing in one or more sub-sequent stages the homogeneous concentrate of step (a) with suf-ficient additional amounts of low viscosity thermoplastic binder material to yield a final homogeneous, flowable compound compris-ing from about 30% to about 70%, by weight, of pigment and from about 30% to about 70%, by weight, of low viscosity thermoplastic binder material.
Patent CA-1063251-A (CA)
Inventor: JOY RICHARD C
IPC: H01L29/78
Filed: 1978-09-29
Granted: 1979-09-25
Abstract: FIELD EFFECT TRANSISTOR HAVING                IMPROVED THRESHOLD STABILITY                Abstract of the Disclosure An improved field effect transistor device in a monocrystalline semiconductor body provided with source and drain regions and a gate electrode disposed over the channel between the source and drain re-gions wherein at least the drain region is formed of a first region where the impurity concentration increases with depth with the peak concentration being spaced inwardly from the major surface, and a second region located within the first region having a peak impurity concentration at the major surface.  The drain region structure in operation promotes the current flow between the source and drain to flow deeper in the channel region and spaced from the gate dielectric layer.  In the method for forming the field effect transistor, an im-purity is introduced into the semiconductor body underlying at least the ultimate drain region, an epitaxial semiconductor layer deposited, and a second impurity region formed over the first region to form the drain contact.  In an alternate embodiment of the method for forming a field effect transistor, a first ion implantation is formed in the drain region, such that the peak impurity concentration is located well with-in the body spaced from the surface thereof, and a second ion implanta-tion, or diffusion, performed forming the source and also the ohmic contact for the drain which is located over the first region and within the first implanted region.
Patent CA-1101769-A (CA)
Inventor: D AMATO RICHARD F
IPC: C12Q1/24
Filed: 1978-10-04
Granted: 1981-05-26
Abstract: AHP-6852-1-Cl 071378 - cl ABSTRACT OF THE DISCLOSURE: The disclosure is directed to a method, reagents and apparatus for the rapid (one to four hours) identification of Neisseria gonorrhoeae and Neisseria meningitidis from cultures grown on a selective or a non-selective medium. One drop of growth suspended in sterile salt solution is placed in each of a plurality of miniature reaction chambers supported on a common base and incubated at 35-37°C for one to four hours. A dried substrate and buffer is contained in each chamber. A detector reagent such as a diazo dye in an aqueous solution with a polar solvent is added to each chamber after incubation. The color change in each chamber is noted and compared with a profile to identify N. gonorrhoeae and Neisseria meningitidis. Synthetic substrates rather than sugars are used in the reaction chambers. The substrates are naphthyl derivatives, .beta.-naphthyl or .beta.-naphthylamides, and are 1) .beta.-naphthyl-.beta.,D-galactopyranoside 2) N-L-.lambda.-glutamyl-.beta.-naphthylamide 3) L-hydroxyproline-.beta.-naphthylamide 4) L-serine-.beta.-naphthylamide 5) L-arginine-.beta.-naphthylamide 6) glycine-glycine-.beta.-naphthylamide 7) .beta.-naphthyl-phosphate 8) .beta.-naphthyl-valerate 9) 4 methoxy leucine-.beta.-naphthylamide 10) glycine-.beta.-naphthylamide
Patent CA-1109350-A (CA)
Inventor: JONES BARRIE R
IPC: A61G9/00
Filed: 1978-10-13
Granted: 1981-09-22
Abstract: International PATENT APPLICATION OF ALZA CORPORATION        AREA DOCKET NO. ARC 552 TITLE:  OCULAR THERAPEUTIC SYSTEM     ABSTRACT       A drug-containing ocular insert that is sized and shaped specifically for placement and retention in the superior fornix above (cephalic to) the superior tarsal plate is disclosed. The insert is in the form of a crescent shaped body that has rounded ends and a concave edge whose radius of curvature approximates the radius of curvature of the superior border of the superior tarsal plate.  The body may be planar or concavo-convex so as to conform to the curvature of the eyeball.
Patent CA-1100035-A (CA)
Inventor: LAWES BERNARD C
IPC: E21B43/28
Filed: 1978-10-18
Granted: 1981-04-28
Abstract: ABSTRACT OF THE DISCLOSURE       A process for the in-situ solution mining of argillaceous uranium ore deposits is provided.  In this process, an aqueous leaching solution is used which contains a potassium salt, the anion thereof capable of forming a water-soluble complex anion with a urinal cation, preferably a potassium carbonate.  An oxidant such as hydrogen peroxide can be added to solubilize uranium.
Patent CA-1109082-A (CA)
Inventor: MAYES WARDEN W
IPC: C10G63/04
Filed: 1978-10-31
Granted: 1981-09-15
Abstract: ABSTRACT OF THE DISCLOSURE           Disclosed is a process for the production of high-purity C6 to C8 aromatic hydrocarbons in high yield from a naphtha feed fraction by high-severity catalytic reforming, using a halogen promoted reforming catalyst, and fractional distillation.  The process comprises reforming the naphtha feed under reforming conditions of high severity in a plura-lity of sequentially arranged reaction zones in which the concentration of the halogen component of the reforming catalyst is adjusted to provide a minimal hydrocracking acti-vity relative to the other reforming reactions to the catalyst in the first reaction zones, and an enhanced hydrocracking activity to the catalyst in the last reaction zones.
Patent CA-1115294-A (CA)
Title: Procede de preparation de nouveaux derives de la  5h-benzocyclohepten-7-amine et leurs sels
Inventor: NEDELEC LUCIEN
IPC: C07B61/00
Filed: 1978-10-31
Granted: 1981-12-29
Abstract: PRECIS DE LA DIVULGATION :           L'invention a pour objet un procédé de préparation de nouveaux dérivés de la 5H-benzocyclohepten-7-amine et de leurs sels, de formule I :                                  (I') dans laquelle R1 représente un hydrogène ou un méthyle,  R2 et R3 présentent un hydrogène, un fluor, un chlore ou un brome, un radi-cal nitro, amino, trifluorométhyle ou méthoxy et X représente un hydrogène ou un halogène.  Les dérivés selon l'invention sont doués de propriétés inhibitrices sur la captation de la sérotonine in vitro et in vivo et certains de propriétés anorexigènes.
Patent CA-1172905-A (CA)
Inventor: BERGER ANTOINE
IPC: F03C2/00
Filed: 1978-12-13
Granted: 1984-08-21
Abstract: ABSTRACT     An hydraulic motor of variable cubic capacity with retractable partitions housed in radial grooves in a rotor 2. the partitions are each integral with a guide pin 6 trapped in an endless cam groove of approximately ovoid shape in a surface stator.  The partitions also pass through radial grooves in a sleeve housed in a circular groove in the rotor in order to slide therein parallel to the axis of the motor.  A reaction member passes through an aperture in the stator in order to remain in frictional contact with an end surface of the sleeve 4.          The driving force comes from oil pressure in a circular groove defined between the end surface of the sleeve and the surface of the stator.  The sleeve and reaction member slide jointly.
Patent CA-1101422-A (CA)
Inventor: COHEN CLAUDE
IPC: C07D487/04
Filed: 1979-01-08
Granted: 1981-05-19
Abstract: NEW AMINO DERIVATIVES OF PYRAZOLO [1.5-A]S.TRIAZINE, PROCESSES FOR THEIR PREPARATION AND           THEIR THERAPEUTIC APPLICATIONS.                ABSTRACT OF THE DISCLOSURE.           This invention relates to compounds having the general formula :                         (I) in which : R1   represents a hydrogen atom or a (C1-4)alkyl radical, R2   represents a hydrogen atom, a (C1-4)alkyl radical, a (C2-4)alkenyl radical, a (C1-4)alkoxy-(C1-4) alkyl radical or a tetrahydrofuryl- or tetrahydropyranyl-(C1-4)alkyl radical, R3   represents a hydrogen atom or a (C1-4)alkyl radical, and R4   represents a hydrogen atom or a (C1-4)alkyl radical, and their pharmaceutically acceptable acid addition salts.          Said compounds have valuable bronchodilator properties.
Patent CA-1139382-A (CA)
Inventor: KASAI YOSHIHIKO
IPC: H03H9/46
Filed: 1979-02-15
Granted: 1983-01-11
Abstract: ABSTRACT An electromechanical filter having mechanical resonators arranged parallel to one another in the longitudinal direction in a same plane. Longitudinal mode couplers, which connect between said mechanical resonators, are selected having a length falling between the first and second and the second and third bending mode resonance of the couplers.  The couplers can therefore be realized from a single coupling wire and an electromechanical filter can be obtained with less attenuation deviation.
Patent CA-1122530-A (CA)
Inventor: KAWABE TADASHI
IPC: A61K33/00
Filed: 1979-03-20
Granted: 1982-04-27
Abstract: ABSTRACT         A constitution improving agent for cancer prevention is described.  This agent is obtained by precipitation magnesium hydroxide containing the various minor constituents of sea water associated therewith, by reacting the magnesium chloride in sea water or brine with milk of lime or caustic alkali.
Patent CA-1104978-A (CA)
Title: Waterproof lamp
Inventor: SCHLACK KARL-FRIEDRICH
IPC: F21S8/00
Filed: 1979-03-20
Granted: 1981-07-14
Abstract: ABSTRACT OF THE DISCLOSURE A waterproof lamp, especially for use an an underwater light source in swimming pools and the like, having an enclosure consisting of a housing and a bezel which may be clamped toge-ther to hold in place and seal an electrical light source. The bezel is equipped with fingers for releasably holding a color light filter. The lower part of the housing has at least one sealable electrical feedthrough and is provided with a pedestal permitting angular orientation. The housing and bezel are pre-ferably made of plastic and are appropriately weighted to a net density greater than water. - 10 -
Patent CA-1085566-A (CA)
Inventor: GWOZDZ JOSEPH W
IPC: H01H9/00
Filed: 1979-03-26
Granted: 1980-09-16
Abstract: Abstract of the Disclosure A hinge is secured to the jamb of a door frame and to the adjacent edge of a door in the frame.  Behind the hinge leaves the jamb and the door are provided with aligned holes that are concealed by the hinge.  The back of each hinge leaf is provided with a recess facing the adjacent hole.  A magnetic-ally operated electric switch is held in the jamb hole and pro-jects into the jamb leaf recess, and a magnetic device is held in the door hole and projects into the door leaf recess.  The switch and magnetic device are not attached to the hinge.
Patent CA-1107904-A (CA)
Inventor: PERLIN ALFRED R
IPC: A61F2/00
Filed: 1979-04-06
Granted: 1981-09-01
Abstract: ABSTRACT OF THE DISCLOSURE An artificial sphincter for closure of a channel in a patient's body communicating with an opening adjacent the outside of the patient's body.  The sphincter has a plug having a distal portion received in the channel, and a collection bag of flexible material covering the distal portion of the plug.  The bag has a distal portion of reduced configurations received in the channel, with the bag inverting and the distal bag portion expanding to an enlarged configuration when the plug is removed from the channel in order to collect materials from the channel.
Patent CA-1091884-A (CA)
Inventor: CAZALY LAURENCE G
IPC: E04H7/02
Filed: 1979-05-03
Granted: 1980-12-23
Abstract: ABSTRACT OF THE DISCLOSURE           A tower is disclosed for the elevated storage of water or other liquids. The tower includes a concrete cylin-drical shell having an upper distal portion, and a steel tank mounted co-axially at the upper distal portion. The tank has a lower floor opening for the shell distal portion to pass there-through. The shell distal portion has a plurality of peripheral openings adjacent to the tank floor opening. A continuous tank floor passes through the shell peripheral openings, and sealingly closes the tank floor opening. The tank floor supports the tank and liquid therein, and connects the tank to the cylindrical shell.
Patent CA-1136239-A (CA)
Inventor: PAUWELS MICHAEL A
IPC: G01D5/22
Filed: 1979-05-22
Granted: 1982-11-23
Abstract: Applicants: Michael A. Pauwels and Dan O. Bauer Title:      "Sine Cosine LVPT"                ABSTRACT OF THE DISCLOSURE A linear variable phase transformer position to phase transducer produces a linear phase change in an output signal with respect to displacement. Moreover, the magnitude of such output signal remains relatively constant while such displacement occurs. The transducer includes two primaries which are specially wound according to sine and cosine functions and are excited out of phase, a secondary, and a core that combines the primary signals and induces the output signal in the secondary according to the core position relative to the primaries.
Patent CA-1121272-A (CA)
Inventor: GUALANDI PAOLO
IPC: A24F19/14
Filed: 1979-06-20
Granted: 1982-04-06
Abstract: ABSTRACT OF THE DISCLOSURE            A fluid deodorizing composition, particularly for use in ash trays, where it is in direct contact with the butts of cigarettes and cigars, comprising a granular absorbent substance which is incombustible at the combustion temperature of the glowing fire of the cigarettes, containing absorbed therein an oily vapour diffuser substance.  The said absorbent substance is amorphous porous silica, containing small amounts of metallic oxides, having a grain size of 20 to 60 mesh per square centimeter, and an absorptive power of up to 1 part by weight of absorbed oily substance per part by weight of absorbing granular substance.
Patent CA-1137975-A (CA)
Inventor: BUCKLER ROBERT T
IPC: C07D209/48
Filed: 1979-06-22
Granted: 1982-12-21
Abstract: ABSTRACT OF THE DISCLOSURE Chemiluminescent-labeled conjugates of the formula: wherein one of R1 and R2 is hydrogen and the other is -NX3R4; R3 is hydrogen or straight chain alkyl containing 1-4 carbon atoms and R4 is wherein n = 2-8 and L(CO? is a specifically bindable ligand, such as an antigenic protein or polypeptide, a hapten or an antibody, or a binding ar.alog thereof, bound through an amide bond; and intermediates produced in the synthesis of such conjugates. The labeled conjugates are useful as reagents in specific binding assays for determining ligands or their specific binding partners in liquid media.
Patent CA-1131689-A (CA)
Title: Method of and apparatus for electrodeless  discharge excitation
Inventor: MCNEILL WILLIAM H
IPC: H01J65/04
Filed: 1979-06-29
Granted: 1982-09-14
Abstract: 20,341               METHODS OF AND APPARATUS FOR ELECTRODELESS         DISCHARGE EXCITATION                 ABSTRACT OF THE DISCLOSURE      A light source includes an electrodeless lamp having a generally cylindrically shaped envelope made of a light trans-mitting substance.  A volatile fill material, enclosed within the envelope, emits light upon breakdown and excitation.  A termina-tion fixture has an outer conductor disposed around its inner conductor, both conductors having a first end which couples power to the lamp and a second end coupled to an alternating current power source.  A first end of a conductive helix is coupled to the first end of the inner conductor, a second end of the helix being open-circuited.  The helix has an electrical length whereby axial electric field maxima and minima occur thereon.  The envelope is oriented centrally and axially within the helix so that opposed ends of the envelope are aligned with axial electric field minima and an axial, non-toroidal arc occurs within the envelope, but does not attach to its interior walls, thereby enhancing the life of the lamp.  The helix can take various forms, such as constant or continuously varying.  A small spherical conductor can be affixed to the second end of the helix to inhibit electrical breakdown from an otherwise sharp end.
Patent CA-1133973-A (CA)
Title: Rocker sliding structural bearing and method of  lining it
Inventor: GREB GERHARD
IPC: E01D19/04
Filed: 1979-07-03
Granted: 1982-10-19
Abstract: ABSTRACT A rocker-sliding structural bearing comprising an intermediate plate and a baseplate, having corresponding convex and concave relatively slidable surfaces, one of which curved surfaces has secured to it a corres-pondingly curved lining of non-corrosive sheet material, while the other of the surfaces is lined with a material which has a low coefficient of friction relative to the non-corrosive material.
Patent CA-1136788-A (CA)
Inventor: HANISCH HORST
IPC: D21H19/58
Filed: 1979-07-20
Granted: 1982-11-30
Abstract: ABSTRACT OF THE DISCLOSURE            The invention is concerned with aqueous filler suspensions of inorgano-oxidic material and a dispersant which contain as dispersant an aqueous solution of maleic acid/vinyl alkoxy silane copolymers.  The aqueous filler suspensions according to the invention have distinctly lower viscosities than conventional systems and are stable.  They are primarily used for coating paper, they serve for example to increase the whiteness and covering power or opacity of paper.